Friday, May 24, 2013

The anti-hepatoma effect of nanosized Mn–Zn ferrite magnetic fluid hyperthermia associated with radiation in vitro and in vivo

Mei Lin, Dongsheng Zhang, Junxing Huang, Jia Zhang, Wei Xiao, Hong Yu, Lixin Zhang and Jun Ye



Joint therapy is a promising area of study in cancer treatment. In this paper, we prepared Mn–Zn ferrite (Mn 0.5 Zn 0.5 Fe 2 O 4 ) magnetofluid using PEI as a surfactant, and investigated the anticancer effect of Mn 0.5 Zn 0.5 Fe 2 O 4 magnetic fluid hyperthermia (MFH) combined with radiotherapy on hepatocellular carcinoma. Both in vitro and in vivo results suggest that this combined treatment with MFH and radiation has a better therapeutic effect than either of them alone. The apoptotic rate and necrotic rate of the combined treatment group was 38.80 and 25.20%, respectively. In contrast, it was only 7.49 and 3.62% in the radiation-alone group, 15.23 and 7.90% in the MFH-alone group, only 3.52 and 2.16% in the blank control group, and 23.56 and 27.56% in the adriamycin group. The cell proliferation inhibition rate of the combined treatment group (88.5%) was significantly higher than that of th...



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